Linaria spartea
Suppl. Dict. Jard. 2: 38. 1790.
Annuals, not reproducing vegetatively by stolons. Fertile stems ascending to erect, 5–31 (–65) cm; sterile stems to 8 (–25) cm. Leaves of fertile stems: blade linear, flat, 3–35 (–48) × 0.5–2.5 mm, apex acute or obtuse. Racemes 1–9 (–25) -flowered, lax, rachis glabrous or sparsely glandular-hairy, hairs 0.1–0.4 mm; bracts linear, 3–5 × 0.5–1 mm. Pedicels erect, 4–7 mm in flower, 5–10 mm in fruit. Calyx lobes linear to linear-lanceolate, 3.5–5.5 × 0.7–1.5 mm in flower, 4–6.5 × 0.8–1.8 (–2.2) mm in fruit, apex acute or subacute. Corollas yellow, 19–26 (–30) mm; tube 2.5–3.5 mm wide, spurs straight or curved, 9–14 (–15) mm, subequal to or longer than rest of corolla, abaxial lip sinus 1–2.5 mm, adaxial lip sinus 2–4 mm. Styles 2-fid; stigma with 2 discrete areas. Capsules oblong-ovoid, (2–) 3–4.5 (–5) × (1.8–) 2.2–3.5 (–4) mm, glabrous or sparsely glandular-pubescent; loculi equal or subequal. Seeds gray or dark gray, reniform, 0.4–0.7 × 0.3–0.5 mm, with conspicuous transverse ridges; wing absent. 2n = 12 (Europe).
Phenology: Flowering Aug–Sep.
Habitat: Dry fields.
Elevation: 0–200 m.
Distribution
Introduced; Conn., w Europe (s France), w Europe (Portugal), w Europe (Spain)
Discussion
Linaria spartea is known from Fairfield County.
Selected References
None.